Infrared sensor



FIG. 1 is a perspective view 1 of an infrared sensor, showing our new design;

FIG. 2 is a perspective view 2 thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof; and,

FIG. 9 is an enlarged cross-sectional view taken along line 9-9 in FIG. 3 thereof.

The parts shown in the broken lines do not form part of the claimed design. 

CLAIM The ornamental design for an infrared sensor, as shown and described. 